Home / 258,058.74-356,148.97-156,140.40

Finding the Fourth Proportional to 258,058.74, 356,148.97 and 156,140.40

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Solution

The fourth proportional to 258,058.74, 356,148.97 and 156,140.40 is: 215,490.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,058.74 : 356,148.97 = 156,140.40 : x
  2. Step 2: Convert to fraction form
    258,058.74/356,148.97 = 156,140.40/x
  3. Step 3: Cross multiply
    258,058.74x = 356,148.97 × 156,140.40
  4. Step 4: Simplify right side
    258,058.74x = 55,609,242,635.39
  5. Step 5: Solve for x
    x = 55,609,242,635.39/258,058.74
  6. Step 6: Final answer
    x = 215,490.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.